Fujitsu to test kid-tracking system using QR codes

Lest you think RFID is the only technology being used in Japan to
track kids, Fujitsu is testing a system that can store detailed data in
QR Codes, eliminating the need for kids to wear
or carry a digital device. The system works sort of like a
CueCat for kids; if a child is lost,
his QR Code can be read by an Internet-enabled scanner, which can automatically forward the child's information to a
specified server, which will in turn notify the parents. Unlike RFID, of course, there's no active transmissions being
sent by the child, but the QR-based system has the advantage of being cheap to implement. Of course, the same results
could probably be achieved by having the child carry a wallet-sized card with his home address and phone number, or a
camp-style tag sewn into a shirt. But, then, Fujitsu wouldn't be able to sell any scanners, would they?